User's Manual

21-15
ADAPTER ERROR -
Check airway adapter
■ Airway adapter was removed
from the sensor head.
■ Snap airway adapter back
into the sensor head.
■ Yes
■ Optical blockage on airway
adapter windows.
■ Clean or replace the airway
adapter.
■ Yes
■ Adapter calibration was not
performed.
■ Perform an airway adapter
calibration.
■ Yes
CO2 CAL IN PROGRESS ■ A zero calibration of the CO
2
sensor is in progress.
■ Wait for the message ZERO
CAL COMPLETE to appear.
■ No
ZERO CAL COMPLETE -
Place sensor on REF cell
■ A zero calibration of the CO
2
sensor was completed
successfully.
■ Remove the sensor head
from the zero cell and place it
over the reference cell.
■ No
CO2 ZERO CAL ERROR -
Perform zero calibration
■ An error was found during the
sensor zero calibration
■ Perform a zero and a
reference calibration. If the
problem persists, return
sensor to factory for repairs.
■ Yes
SENSOR ERROR -
CO
2
zero cal required
■ A drift of the source current is
detected since the last time that
the sensor was either plugged in
or zeroed.
■ Perform a zero and a
reference calibration. If the
problem persists, return
sensor to factory for repairs.
■ Yes
CHECKING CALIBRATION ■ A span or reference calibration
of the CO
2
sensor is in progress.
■ Wait for the CALIBRATION
VERIFIED message to
appear.
■ No
CALIBRATION VERIFIED -
Remove sensor from cell
■ A reference calibration of the
CO
2
sensor was completed
successfully.
■ Remove the sensor head
from the reference cell and
place it over the airway
adapter.
■ No
!
• The unit does not analyze patient data while the monitor displays the above messages.
Problem or
Message
Probable Cause(s) Suggested Response
Alarm
Sounds